fire extinguisher / fire extinguisher

Because of It is used in emergency case, It should be easy to use. But fire extinguisher's weight is nomally a minimum of 5kg and a maximum of 10kg That is why children or older people, women who is weak (normally) can not use easily,
and the usage of fire extinguisher is also the reason. fire extinguisher should be held by only one hand and the hand has to push the button to work as the other hand point fire.
It is not easy to start putting out the fire for weak people like this way. In addition, It will be harder if the fire breaks out to the wall or upside. For those reasons, "this fire extinguisher" is designed with the centering